From: Liam R. Howlett <Liam.Howlett@oracle.com>
Date: Tue, 28 Oct 2025 16:24:18 +0000 (-0400)
Subject: mm/hugetlb: Pass boolean to hugetlb_mfill_prepare() instead of flags
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=1025d56bc8264f9089e8528d3127d27806df3ee0;p=users%2Fjedix%2Flinux-maple.git

mm/hugetlb: Pass boolean to hugetlb_mfill_prepare() instead of flags

uffd_flags_t is used all over the place to communicate if the operation
is requesting write protection.  Just pass a boolean stating true for
write protection or false for not.

Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
---

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index fee92ecd274d..55c0beb9107a 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -6939,7 +6939,7 @@ out_mutex:
 
 static inline
 ssize_t hugetlb_mfill_prepare(struct vm_area_struct *dst_vma, unsigned long dst_addr,
-		unsigned long increment, pte_t **dst_pte, u32 *hash, uffd_flags_t flags)
+		unsigned long increment, pte_t **dst_pte, u32 *hash, bool wp)
 {
 	struct mm_struct *dst_mm = dst_vma->vm_mm;
 	struct address_space *mapping;
@@ -6963,7 +6963,7 @@ ssize_t hugetlb_mfill_prepare(struct vm_area_struct *dst_vma, unsigned long dst_
 		return -ENOMEM;
 	}
 
-	if (!uffd_flags_mode_is(flags, MFILL_ATOMIC_CONTINUE) &&
+	if (!wp &&
 	    !huge_pte_none_mostly(huge_ptep_get(dst_mm, dst_addr, *dst_pte))) {
 		hugetlb_vma_unlock_read(dst_vma);
 		mutex_unlock(&hugetlb_fault_mutex_table[*hash]);
@@ -7077,7 +7077,7 @@ static int hugetlb_mfill_pte_continue(struct vm_area_struct *dst_vma,
 	u32 hash;
 
 	ret = hugetlb_mfill_prepare(dst_vma, dst_addr, increment,
-				    &dst_pte, &hash, flags);
+				    &dst_pte, &hash, flags & MFILL_ATOMIC_WP);
 	if (ret)
 		return ret;
 
@@ -7179,7 +7179,7 @@ static int hugetlb_mfill_atomic_pte_copy(struct vm_area_struct *dst_vma,
 	u32 hash;
 
 	ret = hugetlb_mfill_prepare(dst_vma, dst_addr, increment,
-				    &dst_pte, &hash, flags);
+				    &dst_pte, &hash, wp_enabled);
 	if (ret)
 		return ret;